Theodore w



no Model.)

. T. W. KREITZ 82; A. ROSENBUSGH.

AUTOMATIC FIRE EXTINGUISHER. NQ. 450,161i Patente d Apr. 14,1891,

. WITNESSES: l/VVE/VTORS 20 I I l N %Mma -A TTOHNEY linemen Steinsnrnni union Y HEODORE TV. KR-EITZ AND ANDREW ROSEXB TSCH, OF QUINCY, ILLINOIS.

A UTQWEATlQ FBRE EKTENGUESHER.

spectricnwton forming part of Letters Patent No. 450,161, dated April 1.4, 1891.

To aZZ whom it may concern.-

- Be it known that we, THEODORE W. KREZTZ and ANDREW ROSENBUSCH, citizens of the United States, and residents'ot Quincy, in

5 the county of Adams and State have invented certain new" and useful Iniprovements in Automatic Fire-Extinguishers, of which the following is a specification.

On r invention relates to automatic lire-exl0 tinguishers, and more particularly to the chemicals and compounds used for such puri pose, and which have when brought into contact with each other the property of producing agas or gases which will not support com- I 5 bustion.

The device used in connection with the chemicals and compounds hereinafter mentioned and claimed is illustrated in the accompanying drawing in section, and is con- !0 structed With a glass tube A, having the restricted neck a, and partially filled with sulphuric acid. in the metal box B by means of the wooden stopper 1, and has the extreme end c closed 5 by means of-wax or other material capable of being melted or dissolvedbythe action of heat.

The chamber or boxl; is filled S'itll a compound consisting of the following ingredients,

0 and preferably in the proportions named: powdered saltpeteafiftynine parts; sulphur,

' thirty-six parts; charcoal, four parts, and colcothar, one part.

In the'top of the vessel or metal box B is 5 fitted the WOOdEii trough or box 0, and provided with the central opening or aperture (Z, into which the top of the tube-A projects, and with openin s occur the outer edge. In this trough or box 8 we place a composition consisting' of fifty parts of chlorate of potash, twenty-five parts of sulphur, and twenty-five parts of white sugar. The receptacle is also provided with a handle D, by means of which of Illinois,

This tube A is held in position Application filed October 14, 1889. Serial 1T0. 326.988. (No model.)

it may be suspended or hung upon a nail or hook provided for the purpose. 4-5 The action of the extinguisher is as follows: When the temperature of a room reaches a certain degree, the sulphuric acid contained in the tube A will expand an'd'flow over the tube into the box or troughO and cause com- 5o bustion of the composition contained therein, which in turn, by flowing through-the open; i'ng cl into the compound contained in the box l), sets tire thereto, the said compound having the property of producing a gas or gases,55 which \viilnot support coinbustion, as before described, the openings 6 in the troughO allowing the escape of the fu mes from the box 13. In case the articleis to be used as a handgrenade We provide it with the small'glass 6o tube E, filled with sulphuric acid, and which upon being broken allows the contained acid to come incontactwith the composition in the box 0 and the chemical action to take' place, as above described the ends of said 6 tube E being secured in the Wooden box C.

Havingfully described our invention, what .we claim as new, and desire to secure by Letters Patent, is

An automatic (ire-extinguis l 1er constructed 7o with three chambersand containing sulphuric acid in one of 'said chambers, a compound consisting of saltpetensulphur, charcoal, and; colcothsr, in tlze proportions mentioned, in a second chamber, and a composition in the 75 third chamber consisting of chlorate of potash, sulphur, and sugar in the proportions named.

Signed at Quincy, in the county of Adams and State of Illinois, this 7th day of Septem- 80 her, A. D. 1889.

THEODORE W. KREITZ.

ANDREW ROSENBUSOH. Witnesses:

JOHN W. CORRILL, J11, Hi3. GRARY. 

